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-rw-r--r--lib-src/hexl.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib-src/hexl.c b/lib-src/hexl.c
index 417d9f285d1..b3def05049d 100644
--- a/lib-src/hexl.c
+++ b/lib-src/hexl.c
@@ -138,7 +138,8 @@ main (argc, argv)
#ifdef MSDOS
#if __DJGPP__ >= 2
- setmode (fileno (stdout), O_BINARY);
+ if (!isatty (fileno (stdout)))
+ setmode (fileno (stdout), O_BINARY);
#else
(stdout)->_flag &= ~_IOTEXT; /* print binary */
_setmode (fileno (stdout), O_BINARY);